Question

You are asked to write a Java program that allows a professor to enter five grades and calculates the average. After displaying the average it asks "Do you want to enter more grades?" If yes it repeats the program otherwise it automatically ends the program.

Answer 1

import java.util.Scanner;

class Main {
public static void main(String[] args) {
  
// declaring variables
int grade, total = 0;
Scanner sc = new Scanner(System.in);
String choice = "yes";
  
// as long as answer is yes, repeating it
while(choice.equals("yes"))
{
// resetting total to 0
total = 0;
  
// taking input of grades from user and adding them to the total
for(int i=0; i<5; i++)
{
System.out.print("Enter a grade: ");
grade = sc.nextInt();
total += grade;
}
  
// printing average
System.out.printf("Average is %.2f\n",total/5.0);
  
// asking if user wants to continue
System.out.print("\nWould you like to continue? (Type yes if so) ");
choice = sc.next();
}
}
}

/* OUTPUT
Enter a grade: 6
Enter a grade: 4
Enter a grade: 8
Enter a grade: 7
Enter a grade: 2
Average is 5.40

Would you like to continue? (Type yes if so) yes
Enter a grade: 7
Enter a grade: 8
Enter a grade: 6
Enter a grade: 7
Enter a grade: 9
Average is 7.40

Would you like to continue? (Type yes if so) no
*/